Cost of living in Oporto (Portugal) is 30% more expensive than in Aligarh (India)
WARNING! This comparison is based on only a few data points. At this point it is only a guess. It is based on 575 prices entered by 97 different people.
For example, you would need at least ₨55,914 (€697) in Oporto to maintain the same standard of living that you can have with ₨43,000 in Aligarh.